Sexologist420
Well-Known Member
Hey, I am using CFL's for my first grow, but want to use a 150 watt hps or maybe even a 250 watt if I can for my next grow. The problem is I dont have much space and It would have to be used in a Rubbermaid grow space. Now my question is what is the closest an hps can be from the plants without hurting them? How many inches? A 150 or 250 watt hps. And also I have read something about something that keeps the bulb from getting hot? A something ballast? If I do this I wont mind spending some money on it. I dont want some ghetto rigged cooltube in a rubbermaid...cuz it will melt it. Thanks guys and I appresiate your help.
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